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#### Axial and Radial Options

When you create either a Circular or Total Runout FCF dimension, the Axial and Radial options appear in the Feature Control Frame options area on the Feature Control Frame tab in the XactMeasure GD&T dialog box (Insert | Dimension | <dimension>). These identify the type of runout. In some cases, the input feature or features automatically determine which of these two options is selected:

- Axial - The runout is measured on the end surface of a cylindrical part.

- Radial - The runout is measured on the cylindrical surface of a bore or shaft.

For a Circular Runout with a circle feature as an input, this area also displays a surface type list with two options: Conical and Cylindrical.

Feature Control Frame options area for a Circular Runout with Cone selected from the list and a Cone angle box

This list defines the surface type for the circle feature. If it's on a cylinder, select Cylindrical. If it's on a cone, select Conical.

If you select Conical, the Half Cone angle box appears so that you can define the cone angle to use in the runout calculation. Planner calculates the runout of a circle measured on the surface of a cone perpendicular to the cone surface. It does this by multiplying the cylindrical result by COS (Half Cone Angle).

For more information on FCF Runout, see the "Creating a Runout Feature Control Frame Dimension" topic.